Flora of North America species comparison

glabrous or sericeous.

silvery-sericeous.

petiole 3–25(–42) mm;

blade reniform to broadly ovate-reniform, (3–)8–30 × (3–)8–30 mm, surfaces: abaxial sparsely sericeous, adaxial glabrous or sparsely sericeous, or hairs ± patent.

petiole 10–50 mm;

blade reniform, 5–13 × 12–20 mm, surfaces: abaxial and adaxial densely sericeous, hairs silvery gray.

(3–)5–15 mm, recurved near tips.

4–6 mm, recurved near bases.

sepals 1.5–2 mm at anthesis, 2–2.5 mm in fruit;

corolla greenish to white, 1.5–2(–3) mm.

sepals 2–2.6 mm at anthesis, to 2.4–3 mm in fruit;

corolla cream, 3.4–4 mm.

notably 2-lobed, 2–2.6 × 1.8–2.3 mm, lobes separating, pericarp fragile, shattering irregularly.

slightly notched to weakly 2-lobed, 2.2–2.8 × 2–2.1 mm.

= 28 (Asia).